Function keys for a portable electronic device



FIG. 1 is a perspective view of the first configuration of a function keys for a portable electronic device in accordance with the present design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a perspective view of a second configuration of the function keys for a portable electronic device.

The portions of the portable electronic device shown in broken line are included for the purpose of illustrating environmental structure and form no part of the claimed design. 

The ornamental design for a function keys for a portable electronic device, as shown and described. 